Ubuntu Security Notice 2436-1 - Ilja van Sprundel discovered a multitude of security issues in the X.Org X server. An attacker able to connect to an X server, either locally or remotely, could use these issues to cause the X server to crash or execute arbitrary code resulting in possible privilege escalation.
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Ubuntu Security Notice USN-2436-1
December 09, 2014
xorg-server, xorg-server-lts-trusty vulnerabilities
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A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 14.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS
Summary:
Several security issues were fixed in the X.Org X server.
Software Description:
- xorg-server: X.Org X11 server
- xorg-server-lts-trusty: X.Org X11 server
Details:
Ilja van Sprundel discovered a multitude of security issues in the X.Org X
server. An attacker able to connect to an X server, either locally or
remotely, could use these issues to cause the X server to crash or execute
arbitrary code resulting in possible privilege escalation.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 14.10:
xserver-xorg-core 2:1.16.0-1ubuntu1.1
Ubuntu 14.04 LTS:
xserver-xorg-core 2:1.15.1-0ubuntu2.4
Ubuntu 12.04 LTS:
xserver-xorg-core 2:1.11.4-0ubuntu10.15
xserver-xorg-core-lts-trusty 2:1.15.1-0ubuntu2~precise3
After a standard system update you need to reboot your computer to make
all the necessary changes.
References:
http://www.ubuntu.com/usn/usn-2436-1
CVE-2014-8091, CVE-2014-8092, CVE-2014-8093, CVE-2014-8094,
CVE-2014-8095, CVE-2014-8096, CVE-2014-8097, CVE-2014-8098,
CVE-2014-8099, CVE-2014-8100, CVE-2014-8101, CVE-2014-8102,
CVE-2014-8103
Package Information:
https://launchpad.net/ubuntu/+source/xorg-server/2:1.16.0-1ubuntu1.1
https://launchpad.net/ubuntu/+source/xorg-server/2:1.15.1-0ubuntu2.4
https://launchpad.net/ubuntu/+source/xorg-server/2:1.11.4-0ubuntu10.15
https://launchpad.net/ubuntu/+source/xorg-server-lts-trusty/2:1.15.1-0ubuntu2~precise3